/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/Graph/MovieGraphConfig.h
Gets the variable in the graph with the specified GUID, else nullptr if one could not be found.
[UMovieGraphVariable](API\Plugins\MovieRenderPipelineCore\Graph\UMovieGraphVariable) * GetVariableByGuid ( const [FGuid](API\Runtime\Core\Misc\FGuid) & InGuid ) const